Home / 6,918.55-10,377.79-4,146.05

Finding the Fourth Proportional to 6,918.55, 10,377.79 and 4,146.05

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Solution

The fourth proportional to 6,918.55, 10,377.79 and 4,146.05 is: 6,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.55 : 10,377.79 = 4,146.05 : x
  2. Step 2: Convert to fraction form
    6,918.55/10,377.79 = 4,146.05/x
  3. Step 3: Cross multiply
    6,918.55x = 10,377.79 × 4,146.05
  4. Step 4: Simplify right side
    6,918.55x = 43,026,836.23
  5. Step 5: Solve for x
    x = 43,026,836.23/6,918.55
  6. Step 6: Final answer
    x = 6,219.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.